The Argentine researchers discovered methane from cows accounts for more than 30 per cent of the country's total greenhouse emissions.
As one of the world's biggest beef producers, Argentina has more than 55 million cows grazing in its famed Pampas grasslands.
Guillermo Berra, a researcher at the National Institute of Agricultural Technology, said every cow produces between 8000 to 1,000 litres of emissions every day.
Researchers say feeding cows clover and alfalfa instead of grain can reduced emissions by 25%. Link -via Arbroath